/*
 * Copyright (c) 2020 - present, Inspur Genersoft Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.inspur.edp.web.common.utility;

import java.util.UUID;

/**
 * 随机数构造器
 *
 * @author guozhiqi
 */
public class RandomUtility {
    private RandomUtility() {
    }

    /**
     * 生成随机数
     *
     * @return
     */
    public static String newGuid() {
        return UUID.randomUUID().toString();
    }

    /**
     * 指定长度的GUID
     * @param length
     * @return
     */
    public static String newGuid(int length) {
        return UUID.randomUUID().toString().substring(0, length);
    }
}
